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Star formation is a clustered process that regulates the structure and evolution of galaxies. We investigate this process in the dwarf galaxy Haro 11, forming stars in three knots (A, B, C). The exquisite resolution of HST imaging allows us…

Astrophysics of Galaxies · Physics 2022-01-19 M. Sirressi , A. Adamo , M. Hayes , A. Bik , M. Strandänger , A. Runnholm , M. S. Oey , G. Östlin , V. Menacho , L. J. Smith

We studied the star cluster population properties in the nearby collisional ring galaxy NGC 922 using HST/WFPC2 photometry and population synthesis modeling. We found that 69% of the detected clusters are younger than 7 Myr, and that most…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Anne Pellerin , Gerhardt R. Meurer , Kenji Bekki , Debra M. Elmegreen , O. Ivy. Wong , Patricia Knezek

This contribution addresses the question of whether the initial cluster mass function (ICMF) has a fundamental limit (or truncation) at high masses. The shape of the ICMF at high masses can be studied using the most massive young (<10 Myr)…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 N. Bastian , I. S. Konstantopoulos , G. Trancho , D. R. Weisz , S. S. Larsen , M. Fouesneau , C. B. Kaschinski , M. Gieles

We present the first sample of 222 high-redshift (z>0.5) star clusters, detected with JWST/NIRCam in 78 magnified galaxies from different galaxy cluster fields. The majority of the systems (~60%) is observed in the very deep NIRCam…

We present the results of deep high resolution imaging performed with ACS/HRC@HST in the most active region of the nearby starburst galaxy NGC 4214. We resolved the stellar populations of five Young Massive Clusters and their surrounding…

Astrophysics of Galaxies · Physics 2015-06-17 A. Sollima , M. Cignoni , R. G. Gratton , M. Tosi , A. Bragaglia , S. Lucatello , G. Meurer

We present new mid-infrared ($5 - 35\mu$m) and ultraviolet (1539 -- 2316 \AA) observations of the interacting galaxy system Arp 143 (NGC 2444/2445) from the Spitzer Space Telescope and GALEX. In this system, the central nucleus of NGC 2445…

Astrophysics · Physics 2011-02-11 P. Beirão , P. N. Appleton , B. R. Brandl , M. Seibert , T. Jarrett , J. R. Houck

We present the results of a {\it Hubble Space Telescope} ACS/HRC FUV, ACS/WFC optical study into the cluster populations of a sample of 22 Luminous Infrared Galaxies in the Great Observatories All-Sky LIRG Survey. Through integrated…

We present observations of Arp 147, a galaxy system comprising a collisionally-created ring galaxy and an early-type galaxy, using the Oxford SWIFT integral field spectrograph (IFS) at the 200-inch Hale telescope. We derive spatially…

We use the Advanced Camera for Surveys on the Hubble Space Telescope to study the rich population of young massive star clusters in the main body of NGC 3256, a merging pair of galaxies with a high star formation rate (SFR) and SFR per unit…

Astrophysics of Galaxies · Physics 2016-07-27 Alexander J. Mulia , Rupali Chandar , Bradley C. Whitmore

We present a detailed study of the star cluster population detected in the galaxy NGC922, one of the closest collisional ring galaxies known to date, using HST/WFPC2 UBVI photometry, population synthesis models, and N-body/SPH…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Anne Pellerin , Gerhardt R. Meurer , Kenji Bekki , Debra M. Elmegreen , O. Ivy Wong , Patricia M. Knezek

[Abridged] Twenty-six high-luminosity IRAS sources believed to be collection of stars in the early phases of high-mass star formation have been observed in the NIR (J, H, K) to characterize the clustering properties of their young stellar…

Astrophysics of Galaxies · Physics 2015-05-13 Fabiana Faustini , Sergio Molinari , Leonardo Testi , Jan Brand

We present a comprehensive multi-wavelength study of the star-forming region NGC 1893 to explore the effects of massive stars on low-mass star formation. Using near-infrared colours, slitless spectroscopy and narrow-band $H\alpha$…

Astrophysics · Physics 2009-11-13 Saurabh Sharma , A. K. Pandey , D. K. Ojha , W. P. Chen , S. K. Ghosh , B. C. Bhatt , Maheswar , G. , Ram Sagar

The mass function (MF) of young ($\mathrm{age\lesssim 200}$ Myr) stellar clumps is an indicator of the mechanism driving the collapse of the interstellar medium (ISM) into giant molecular clouds. Typically, the clump MF in main-sequence…

We present results from a study of proto-globular cluster candidates in the interacting galaxy system Arp 284 (NGC 7714/5) using data from the Hubble Space Telescope. Previous studies of the Antennae and M51 have suggested that the majority…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Bradley W. Peterson , Curtis Struck , Beverly J. Smith , Mark Hancock

We analyze the three-dimensional shapes and kinematics of the young star cluster population forming in a high-resolution GRIFFIN project simulation of a metal-poor dwarf galaxy starburst. The star clusters, which follow a power-law mass…

Astrophysics of Galaxies · Physics 2020-12-02 Natalia Lahén , Thorsten Naab , Peter H. Johansson , Bruce Elmegreen , Chia-Yu Hu , Stefanie Walch

Deep, near-infrared JHK-maps were observed for 10 nearby, grand-design, spiral galaxies using HAWK-I/VLT to study the distribution of young stellar clusters in them and thereby determine whether strong spiral perturbations can influence…

Cosmology and Nongalactic Astrophysics · Physics 2012-06-04 P. Grosbol , H. Dottori

Archival WFC3/UVIS imaging of Arp 299 (NGC 3690E + NGC 3690W) is retrieved to investigate the young massive cluster (YMC) population of this ongoing merger. We extract 2182 cluster candidates, including 1323 high confidence photometric…

Astrophysics of Galaxies · Physics 2018-10-24 Zara Randriamanakoto , Petri Väisänen , Stuart D. Ryder , Princy Ranaivomanana

(abridged) We provide Ks photometry for roughly 39,000 stars and H-band photometry for about 11,000 stars within a field of about 40"x40", centred on Sgr A*. In addition, we provide Ks photometry of about 3,000 stars in a very deep central…

Astrophysics of Galaxies · Physics 2020-09-16 R. Schödel , F. Nogueras-Lara , E. Gallego-Cano , B. Shahzamanian , A. T. Gallego-Calvente , A. Gardini

We compare the mass functions of young star clusters (ages $\leq 10$ Myr) and giant molecular clouds (GMCs) in six galaxies that cover a large range in mass, metallicity, and star formation rate (LMC, M83, M51, NGC 3627, the Antennae, and…

Astrophysics of Galaxies · Physics 2020-05-06 Angus Mok , Rupali Chandar , S. Michael Fall

In this paper we derive ages and masses for 276 clusters in the merger galaxy NGC 3256. This was achieved by taking accurate photometry in four wavebands from archival HST images. Photometric measurements are compared to synthetic stellar…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Q. E. Goddard , N. Bastian , R. C. Kennicutt
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